Rock Identifier
Quartz (Silicon Dioxide (SiO2)) — mineral
mineral

Quartz

Silicon Dioxide (SiO2)

AI-generated identification · may be incorrect

Hardness of 7 on Mohs scale; white to clear color; vitreous luster; hexagonal crystal system; conchoidal fracture with no true cleavage.

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Physical properties

Hardness of 7 on Mohs scale; white to clear color; vitreous luster; hexagonal crystal system; conchoidal fracture with no true cleavage.

Formation & geological history

Forms in igneous, metamorphic, and sedimentary environments through the cooling of silica-rich magma or precipitation from hydrothermal solutions.

Uses & applications

Used in electronics, glassmaking, abrasives, gemstones, and ornamental carvings.

Geological facts

Quartz is the second most abundant mineral in Earth's continental crust and exhibits strong piezoelectric properties.

Field identification & locations

Easily identified by its high hardness, conchoidal fracture, and lack of cleavage. Found worldwide in nearly all geological environments.